Google Cloud Storage: Deleting contents of a bucket

Question

Im successfully uploading files to google storage like this:

Task upload = Task.Run(async () =>
{
    var clientSecrets = new ClientSecrets();
    clientSecrets.ClientId = "*****";
    clientSecrets.ClientSecret = "*****";

    var scopes = new[] { @"https://www.googleapis.com/auth/devstorage.full_control" };

    var cts = new CancellationTokenSource();
    var userCredential = await GoogleWebAuthorizationBroker.AuthorizeAsync(clientSecrets, scopes, "mail@example.com ", cts.Token);

    await userCredential.RefreshTokenAsync(cts.Token);

    var service = new StorageService();

    var bucketsQuery = service.Buckets.List("MyProjectName");
    bucketsQuery.OauthToken = userCredential.Token.AccessToken;
    var buckets = bucketsQuery.Execute();

    Bucket bucketToUpload = buckets.Items.FirstOrDefault();

    var newFile = new Google.Apis.Storage.v1.Data.Object()
    {
        Bucket = bucketToUpload.Name,
        Name = TargetFileName
    };


    FileStream fileStream = null;
    try
    {
        fileStream = new FileStream(TargetFilePath, FileMode.Open);
        var uploadRequest = new ObjectsResource.InsertMediaUpload(service, newFile, bucketToUpload.Name, fileStream, "audio/wav");
        uploadRequest.OauthToken = userCredential.Token.AccessToken;
        await uploadRequest.UploadAsync();
    }
    catch (Exception ex)
    {
        Console.WriteLine(ex.Message);
    }
    finally
    {
        if (fileStream != null) fileStream.Dispose();
    }
});

await upload;

What I´d also like to do though, is deleting all the contents from a bucket. I can´t seem to find a way that works when searching the internet. Can anybody provide me with a code example?

Thanks a lot in advance!

Answer 1

I suggest using the C# client libraries. With these, deleting the files within a bucket could be achieved by using the following code:

using System;
using Google.Cloud.Storage.V1;

namespace csharp {
    public class deletingFilesFromBucket
    {
        static void Main(string[] args)
        {
                var storage = StorageClient.Create();
                var bucketName = "MyBucket"
                foreach (var storageObject in storage.ListObjects(bucketName, ""))
                {
                        storage.DeleteObject(bucketName, storageObject.Name);
                        Console.WriteLine($"Deleted {storageObject.Name}.");
                }
        }
    } 
}

You could find the reference for this in this document.